PPT-Stoichiometry

Chemistry Ms Piela Stoichiometry The quantitative study of reactants and products in a chemical reaction Chemical reactions give info about how molecules combine and can be used to determine amounts of substances that form. Balancing Hints:. Balance the metals first.. Balance the ion groups next.. Balance the other atoms.. Save the non ion group oxygen and hydrogen until the end.. Balance . the following equations;. __Ca . perforated JChemEd.chem.wisc.edu Percent Yield. Important Terms. Yield. : the amount of product. Theoretical yield. : the maximum amount of product expected, based on . stoichiometric. calculations. Actual yield. : amount of product from a procedure or experiment (this is often given in a question). and . Thermochemical. . Reactions. the energy of a reaction is directly related to the quantity of products. if 28.4 kJ of energy is required to melt 1 mol of . NaCl. at its melting point then it would require twice that amount (56.8 kJ) to melt 2 mol of . 2.25 cups flour. 8 Tbsp butter. 0.5 cups shortening. 0.75 cups sugar. 0.75 cups brown sugar. 1 tsp salt. 1 tsp baking soda. 1 tsp vanilla. 0.5 cups Egg Beaters. 1 bag chocolate chips. Chocolate Chip Cookies. Bon Appetite. Suppose you are a chef preparing . F. rench toast for a group of people. You make French toast the way you have always made it: . one egg for every three slices of bread. . You never waiver from this recipe, because the French toast will be either too soggy or too dry. There are 8 eggs and 30 slices of bread in the pantry.. Gas Stoichiometry. Recall:. The law . of combining volumes . W. hen . gases react, the volumes of the reactants and products react in whole. -number . ratios if the temperatures and pressures are constant. . Halvor M. Halvorson. 1. , Chris L. Fuller. 2. , Sally A. Entrekin. 3. , J. Thad Scott. 4. , and Michelle A. Evans-White. 1. 1. University of Arkansas Department of Biological Sciences. 2. University of Central Arkansas Department of Biology. Yes…it’s still stoichiometry…. Think about making grilled cheese…. To make a . decent . grilled cheese sandwich, you need two pieces of bread, 2 pieces of cheese, and 1 pat of butter. Write an equation that describes making a grilled cheese sandwich. . Step-by-Step Mass to Mole. What is Stoichiometry. Stoichiometry is the study of the relationships or ratios between two or more substances undergoing a physical or chemical change. We will be taking steps to solve the different equations. References :. Basic Principles and Calculations in Chemical. Engineering, 7 edition,. . . David. M. . Himmerblau. and James B. Riggs.. ปริมาณสัมพันธ์สำหรับงานอุตสาหกรรม เล่ม . It’s a process that allows us to mathematically convert and calculate the relationships between the amount of reactants and products in a chemical reaction.. Graphical representation . Example: . for every O2 molecule,. Guiding Questions. How are dosages determined? . How are toxins measured and controlled?. . Which is better: eating beans and rice at separate meals . or together?. . Table of Contents. ‘Stoichiometry’. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 4. Lecture 4. 2. Block 1. Mole Balances. Size CSTRs and PFRs given –.